<nz-dropdown-menu #contextMenuDropdown="nzDropdownMenu">
  <ul nz-menu>
    <li (click)="delete()" nz-menu-item>
      <span class="me-2" nz-icon [nzType]="deleting ? 'loading' : 'delete'" [nzTheme]="'outline'"></span>
      删除
    </li>
  </ul>
</nz-dropdown-menu>
